Description

This standard specifies abrasive blast cleaning methods for the preparation of steel surfaces before coating with paints and related products. 

Scope

This Standard also contains information on the effectiveness of the individual methods and their fields of application.

This standard is applicable to new and corroded steel surfaces and also to steel surfaces that are uncoated or have been previously coated with paints and related products.

These methods are essentially intended for the surface preparation of hot-rolled steel but could also be used for cold-rolled steel of sufficient thickness to withstand the deformation caused by the impact of abrasive. Items considered as a part of surface preparation before coating are edge grinding, removal of grease and oil, removal of weld spatter, removal of burrs and other sharp edges, grinding of welds, filling of pits, porosity of welds and other surface imperfections and removal of water-soluble contaminants that may cause premature failure of the coating system. Such defects cannot be satisfactorily treated by abrasive blast cleaning.